It was these drugs combined with the cold water in the canal Mr Poole had fled through, and the strenuous exercise of fleeing the police that caused him to suffer heart failure and die.

Mr Poole's mother told the hearing the pair had rowed earlier in the day.

Lindsey Hardstaff said: "I shouted at him told him to get himself together. I knew he'd been taking drugs and told him to pull himself together, get a job and sort his life out. He just kept saying he would."

Carl had earlier been in the car, a red Peugeot 206, with three other men - the car's owner Andrew Fennell, David Simms, and Jamie Naylor. The four had parked at B&Q in Eastwood. Carl, who was banned from driving for having no insurance, then drove off in the car while the three men went into the store.

Coroner Louise Pinder said the men's evidence to the hearing yesterday were inconsistent with those they made to the police at the time, and with each others.

The car was seized by police and 14 plastic bags containing amphetamine were found.

Mr Fennell said Carl had taken the car on the agreement he would be back in a few minutes, but never returned.

After his evidence, during the inquest, Mrs Hardstaff accused Mr Fennell of lying: "I know you are lying. Tell me the truth so I can get to the bottom of why Carl died. You were on drugs and Carl was on a drugs run. Why were you paying him £100?

Mr Fennell said that no one had given Carl money for drugs.Jamie Naylor, another man in the car, said he had last seen Carl at 4.30pm when he took the vehicle. He later tried calling him but got no answer.

Mrs Hardstaff claimed at the hearing Mr Naylor had sat in her house after Carl's death and told her Carl had been given £100 for a 'drug run'. An allegation he denied.

The red Peugeot had been stopped by Pc Jonathan Mortimer at 5.35pm as part of an operation that uses automatic number plate recognition, highlighting vehicles of interest. He said: "At 5.35 pm I was parked on Anchor Road when I was alerted to the vehicle.

"I signalled to him through the window and asked him to get out the vehicle."

As they both walked towards the police car Mr Poole ran off across the road. Pc Mortimer got back in the car and attempted to follow Mr Poole and radioed for assistance. He saw Mr Poole climb a barrier and head in the direction of Nottingham before losing sight of him.

Mr Poole was seen running by a number of witnesses before Pc Leigh Whitehead from the police dog unit found him slumped and 'lifeless' at 6.05pm. He was certified dead at 7.20pm in the back of an ambulance.Detective Chief Inspector Richard Gooch said: "I think to avoid capture he entered water to minimise the scent of him once he suspected the dogs.

He added: "I'm as happy as I can be that no third party was involved. I will never know why he ran away from the officer."

The car had been stopped by Pc Jonathan Mortimer at 5.35pm as part of an operation that uses automatic number plate recognition, highlighting vehicles of interest. He said: "At 5.35 pm I was parked on Anchor Road when I was alerted to the vehicle.

"I signalled to him through the window and asked him to get out the vehicle."

As they both walked towards the police car Mr Poole ran off across the road. Pc Mortimer got back in the car and attempted to follow Mr Poole and radioed for assistance. He saw Mr Poole climb a barrier and head in the direction of Nottingham before losing sight of him.

Mr Poole was seen running by a number of witnesses before Pc Leigh Whitehead from the police dog unit found him slumped and 'lifeless' at 6.05pm. He was certified dead at 7.20pm in the back of an ambulance.

Detective Chief Inspector Richard Gooch said: "I think to avoid capture he entered water to minimise the scent of him once he suspected the dogs.

He added: "I'm as happy as I can be that no third party was involved. I will never know why he ran away from the officer."

The jury of eight people took and hour and a half to return their verdict. Death by misadventure means that the person deliberately undertook a task that caused death and often involves taking a risk, as Mr Poole did when he entered the canal.